患者,男,45岁。上腹疼痛2个月,伴反酸,纳差。胃镜示胃体大弯0.5cmX0.5cm扁平隆起,表面充血。尿素酶试验(+)。病理:黏膜慢性炎,伴重度非典型增生。父亲死于胃癌。患者行手术治疗,术后还须采取的治疗措施是
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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